diff --git a/openbsc/tests/bsc-nat/Makefile.am b/openbsc/tests/bsc-nat/Makefile.am
index fa55d27..40be3a3 100644
--- a/openbsc/tests/bsc-nat/Makefile.am
+++ b/openbsc/tests/bsc-nat/Makefile.am
@@ -44,6 +44,7 @@
 bsc_nat_test_LDADD = \
 	$(top_builddir)/src/libfilter/libfilter.a \
 	$(top_builddir)/src/libbsc/libbsc.a \
+	$(top_builddir)/src/libcommon-cs/libcommon-cs.a \
 	$(top_builddir)/src/libmgcp/libmgcp.a \
 	$(top_builddir)/src/libtrau/libtrau.a \
 	$(top_builddir)/src/libcommon/libcommon.a \